Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

SIM900A Error: PDP DEACT. How can i solve this error?

Status
Not open for further replies.

ashish.talaviya

Junior Member level 1
Joined
Jan 8, 2016
Messages
18
Helped
0
Reputation
0
Reaction score
0
Trophy points
1
Activity points
146
Hello.
I am using SIM900A and made code for this.
In this code, i got IMEI number, Service provider, Network strength, APN set for SIM card.
After this result I set commands AT+CIPMUX=0, AT+CIPSTATUS, AT+CGATT=1, AT+CIICR, AT+CIPSTATUS, AT+CIFSR, AT+CIPSTATUS respectively.
Then i use command AT+CIPSTART to Open port on Given IP and it is also working.
Then i use AT+CIPSEND for sending data and i got data on port.
All are working properly, but it gives me "PDP DEACT" error after some time i.e. about 1 hour.
So after this error reset my MCU, but getting same result.
All are working fine except this error.
Help me to solve this error.
 

I have personally found that sometimes the cell tower closes the connection from their side, and that causes the PDP DEACT message. You should simply be able to re-establish the connection using the same steps you follow to setup the connection the first time. Starting from AT+CGATT=1 should definitely work, but perhaps even just re-issuing the AT+CIICR command could also work. You may need to run AT+CIPSHUT though first so the modem knows all connections are closed.
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top